Newsletter sign up with success message main using grid and flexbox

What are you most proud of, and what would you do differently next time?

I figured out how to add valid email required next to the email address label. Next time I would try to do it with css but at the moment it seemed simpler with html and javascript.

What challenges did you encounter, and how did you overcome them?

I was having a hard time switching to desktop and mobile without screwing up the layout. I overcame it with some trial and error. I would like to know if I could have laid out the card in a better way.

What specific areas of your project would you like help with?

Any general feedback is welcomed.